The best science images of 2025 — <i>Nature</i>’s picks Nature, Published online: 15 December 2025; doi:10.1038/d41586-025-03935-3 The Sun’s fiery surface, a tattooed tardigrade, rare red lightning and more.

NSF softens grant-review rules to cope with backlog Nature, Published online: 15 December 2025; doi:10.1038/d41586-025-04067-4 Agency staff members say that the changes are reasonable, but they are worried about the potential effects on review.

How fasting boosts breast cancer therapy Nature, Published online: 15 December 2025; doi:10.1038/d41586-025-03809-8 A discovery in mice reveals why fasting enhances a type of breast cancer treatment — a hormone-signalling pathway and gene-expression changes have key roles.

Christopher Rounds is a scientist who studies walleye in Minnesota, but he doesn't use a boat or a net or even a laboratory.

Women serving in the Indian Armed Forces suffer systemic discrimination across all stages of their military careers, a new study shows.

New research led by the University of St Andrews has created the most comprehensive maps to date of the distribution of gray and harbor seals in Northwest Europe, encompassing the majority of seal pop